d+d on old lime plaster/render

[ballsdeep]

if i was to d+d over an old lime render wall,would it be ok to pva then dab or does it need a good key first? the bottom half of the wall is solid render & the top half is lath n plaster so just gonna do the lot.

 

[church]

i would still mechanical fix the top half of the wall into the joists after you d&d it .

 

[richardbrown]

bond it .... then dab if the substrate is sound

 

[flat boy skim]

batten the top half out then screw top and stick bottom

 

[beddy]

batten the top half out then screw top and stick bottom

how would that work. you'd be building the bottom half out loads wouldnt you?! if your gonna batton the top you might aswell batton the bottom

 

[flat boy skim]

batten the top half out then screw top and stick bottom

how would that work. you'd be building the bottom half out loads wouldnt you?! if your gonna batton the top you might aswell batton the bottom

he said the bottom half was solid render ,i was thinking use 2x1 for top half ,fcuk knows cant get a mentle image of job really lol WHAT EVER

 

[flat boy skim]

E.M.L top half first ???

 

[richardbrown]

B O N D ------ I T

 

[flat boy skim]

B O N D ------ I T

thats just adding to the weight,and old lime is week

 

[beddy]

batten it!!!!.....





























Or bond it

 

[richardbrown]

how is bond it adding weight ??? As I said in my first post bond it and dab over only if the lime render is sound

 

[flat boy skim]

how is bond it adding weight ??? As I said in my first post bond it and dab over only if the lime render is sound

so u did soz richard ;D 9 times out of 10 lime is 5hit though

 

[richardbrown]

oh and i do mean bonding agent not bonding coat you know lol

 

[beddy]

oh and i do mean bonding agent not bonding coat you know lol

yeah bond-it not bond, it

 

[richardbrown]

gets confusing this doesnt it steve ....

 

[RMK]

can't believe you guys would dab on to an original plaster wall!!!!!
Never done it, can't say I ever would.
Have heard of cutting pockets out of an original plastered wall back to the brick and dabbing the majority back to the brick, but not on to the plaster itself????
Oh well... Leanr something new every day!

 

[flat boy skim]

can't believe you guys would dab on to an original plaster wall!!!!!
Never done it, can't say I ever would.
Have heard of cutting pockets out of an original plastered wall back to the brick and dabbing the majority back to the brick, but not on to the plaster itself????
Oh well... Leanr something new every day!

who said theres brick behind it might be studwork

 

[flat boy skim]

oh and i do mean bonding agent not bonding coat you know lol

ohhhhh lol

 

[beddy]

can't believe you guys would dab on to an original plaster wall!!!!!
Never done it, can't say I ever would.
Have heard of cutting pockets out of an original plastered wall back to the brick and dabbing the majority back to the brick, but not on to the plaster itself????
Oh well... Leanr something new every day!

who said theres brick behind it might be studwork

i'm guessing the solid render means its on brickwork mate. else the whole wall would be lath and plaster

 

[flat boy skim]

i would still mechanical fix the top half of the wall into the joists after you d&d it .

this made me think of that

 

[Nisus]

Just knock the complete wall down & rebuild it in this case,
it's the only way!

 

[lucius]

You cant dot and dab on old lime plaster end of, gypliner or 50mm metal stud.

 

[richardbrown]

why cant you

 

[lucius]

Because you can never be sure the substrate is sound or will remain sound in the future and as far as i know there is nothing available to seal it with other than products that will prevent the wall from breathing possibly causing problems.

 

[richardbrown]

Every job is different and needs to be acted on accordingly

I would say that it would be fine to d+d in most cases

 

[Gibbo]

bg used to do a system for this problem it was an adhesive in tubs small bands dabbed on the push board tight then a fixing drilled in dont know if its still on market

 

[RMK]

I agree. Hack off and start again.
Can someone give me an example of when they'd dabb on to a plastered surface please?
It's either a hack off and re-do or a reskim in my book.
Still trying to get my head around this one.